Croda International, Inc.

Hans Ridderikhoff

Tanja Van Bergen-Brenkman

Bastiaan Wels

Hendrikus Johannes Franciskus Philipse

Dessy Liminto

A self-metathesis process for the production of unsaturated dicarboxylic fatty diacids and/or unsaturated dicarboxylic fatty diesters, wherein unsaturated carboxylic fatty acids and/or esters of unsaturated carboxylic fatty acids are reacted in the presence of at least one defined ruthenium based catalyst compound. A catalyst enhancer compound selected from a sacrificial catalyst or a non-catalyst enhancer may also be used. The process exhibits improved reaction times and/or the catalyst can be used at very low concentrations.

Metathesis of olefins using ruthenium based catalytic complexes

A process of metathesizing a feedstock in the presence of a metathesis catalyst and at least one catalyst enhancer. The catalyst enhancer can be selected from a sacrificial catalyst or a non-catalyst enhancer. The process exhibits improved reaction times and/or the metathesis catalyst can be used at very low concentrations.

Metathesis process

A process for producing C-Cmonobranched fatty acids or alkyl esters thereof which includes isomerizing unsaturated C-Cfatty acids or alkyl esters thereof in the presence of a catalyst which comprises both a zeolite and a Lewis base. The zeolite can be reused after simple separation from the reaction products without having to regenerate. The process is particularly suitable for producing highly monobranched fatty acids or alkyl esters thereof.

Growing community of inventors

Gouda, Netherlands

Hans Ridderikhoff